ferrand



May 29, 1928.

F. FERRAND MACHINE FOR SPINNING YARN Filed July 22, 1925 2 Sheets-Sheet l May 29, 1928.

1,671,820 F. FERRAND MACHINE FOR SPINNING YARN Filed July 22, 1925 2 Sheets-Sheet 2 wvavrm Patented May 29, 1928. i

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y Application m d Ju y 22,1925, seer no.

'This invention. has for spinning yarn.

reference to machines Proposals have already beenmade to provide in a spinning n-iachine a j plurality of flines of drafting rollers in addition to the usual lines of drafting rollers, for thepurpose of efiectin by means of said additional rollers the dra ting of the roving usually effected in a roving machine, and in this way rendering the employment of a roving machine unnecessary. In the said proposals the additional lines of draftingrollers were mounted side by side in horizontal alignment or inclined to thehorizontal in. alignment with or similarly to the usual lines. of drafting rollers of themachine. With such arrangement of additional drafting rollers difliculty was experienced in getting short fibres to enter the nips of the rollers and it was found necessary to provide rollers for supporting the roving between pairs of adjacent drafting rollers, and in the end the arrangement was not successful in practice.

The object of this invention is to provide an improved arrangement of additional drafting rollers in mules, ring, and other machines for spinning yarns, whereby to effect in a practical and successful way in such machines the drafting of the roving usually effected in roving and/or intermediate machines.

According to this invention the lines of additional drafting rollers are arranged one above the other in more or less vertical alignment, instead of as hitherto proposed;

In the accompanying drawings Fig. 1 is an end elevation and Fig. 2 is a frontelevation of one arrangement of drafting rollers in accordance with the invention. a Referring to the drawings, 4, 5 and 6 are the usual lines of drafting rollers of a mule, ring or other spinning machine.

'At the rear of the rollers 4, 5, 6 additional lines of drafting rollers 7, 8 and 9 are arranged above one another.

The several lines of usual and additional rollers are driven at different speeds as is customary by any suitable means, Conveniently, and as illustrated, the shaft of the bottom rollers of the front line 4 is positively driven and has mounted on it a gear wheel "10 which drives a gear wheel 11 on a shaft mounted in a bracket12. The said shaft also carries a gear wheel 13 which gears with a wheel 14 on the shaft of the bottom rollers of the rear usual line 6. On the latter 0; andfinGreat ma y PATENT-OFFICE! also: two gear wheels'15, 16. The 3 wheel 15 gears with apinion 17 which in turn gears with-a gear wheel'lS on the shaft of the bottom rollers" of the middle line 5. The wheel 16 gears with a pinion 19 which inturn gears with a wheel 20 on the shaft of the bottom rollers of the additional line 7: Thewheeliflo'. gears witha wheelfll on the shaft of the bottom rollers of the line 8 which in turn gears with the wheel 22 on the shaft of the bottomrollers of the line 9. Thus the bottom rollers of the lines 4, 5, 6, 7, 9 all rotate in the same direction and the bottom roller of the line 8 rotates in the opposite direction. The top rollers of the several lines, are rotated by friction from their bottom rollers in the usual wa By substituting for the gear wheel 13 whee 8 having differentnumbers of teeth the speed of the lines of rollers 5, 6, 7, '8, 9 relativcly to the line of rollers 4 may be varied as required. The lines of rollers 7, 8, 9

' are conveniently mounted in bearings supported by brackets 24.

The roving 23 passes into uppermost line of additional rollers 9 from the rear and from such rollers it asses to the nip of the middle line 8 at t e front, whence it passes to the nip of the line of the lowermost additional rollers 7 at therear. After issuing from the rollers 7 the roving passes to and through the lines of rollers 6, 5, 4 in the ordinary way.

With the described arran ement of the additional lines? of rollers 8 and 9 the roving is in contactwith the rollers over a larger proportion of their circumferences than in theprevious proposed arrangement before-referred to, it is found that short fibres have a tendency to cling towards the upper rollers of the lines and are guided into the nips, the stretches of the rovin betweenthe lines 9 and 8, 8 and 7, and

and 6 are substantially vertical and do not require to be supported, and it is possible in a spinning machine to draft and spin from a slubbing roving thus dispensing with the necessity of drafting the rovin in intermediate and roving frames. Furt er, as no twist is imparted to the roving between the lines of rollers 9 and 4, the twist or 'nally in the roving is practically eliminated y the time the drafted roving issues from the rollers 4 and the fibres are practically parallel. Although Ihave described and illustrated the provision of three additional lines of the nip of the i drafting 'rtollm, it will he understood that I may-employ any other suitable number of additional linesr of drafting rollers.

What I claim as myinvention and .desire v 6 to secure by Letters Patent is:-

1. In a spinning machine such as a mule or ring frame, in combination, a set of lines of drafting rollers, andia :plarality of additional drafting rollers arranged in a sub 10 stantially wertica'l tier and adapted to the 'passageztherebetween of a roving.

:2. In a spinning machine such as a mule or rmgframe, incombination, :a set of lines of drafting rollers, and a plurality ofaddit'ional drafting rollers arranged in a substantially wertical tier and adapted to the lpassage'therebetwaen rxfa rowing,vand means the periphery thereof.

my hand..

for-drink said irollem at Qiogressively increasing speeds, lbut lms than the speed of said'first mentioned drafting rollers.

3. In a spinniuglmachine such as a mule prising relatively large *frcely'anounted follower rolls, and means for' oausing theroving to wrap around a substantial portion of :In witness whereof v have hereunto FRED FERRAND. 

